Apparatus for transmitting motion



(No Model.)

J. HUNT. APPARATUS FOR TRANSMITTING MOTION.

Patented Mar. 14, 1893.

Q W- vuzomzo NITED STATES PATENT OFFICE.

JOHN HUNT, OF BELOIT, WISCONSIN.

APPARATUS FOR TRANSMITTING MOTION.

SPECIFICATION forming part of Letters Patent No. 493,589, dated March14, 1893.

Application filed June 2, 1892. Serial No. 435,233. (No model.)

To all whom it may concern.

Be it known that 1, JOHN HUNT, of Beloit, in the county of Rock andState of Wisconsin, haveinventedcertain newand useful Improvements inApparatus for Transmitting Motion; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to apparatus for transmitting motion, such meansbeing more especially applicable to small machines where rapid motion isrequired, as scroll-saws, drills, &c., and my invention resides in thenovel arrangement, construction and combination of parts hereinafterspecified and set forth in the claims.

I shall, for the sake of illnstratiomdescribe my improved apparatus inconnection with a scroll-saw.

In the accompanying drawings, Figure 1 is a perspective view of theapparatus in use with a scroll-saw. Fig. 2 is a front elevation of therotating parts. Fig. 3 is a side elevation of the same. Figs. 4 and 5are sectional and side views of the ratchet wheel, and Figs. 6 and 7 aresimilar views of the pawl.

A represents the frame-work supporting a scroll saw B, adapted to beadjustably secured to an ordinary table.

Rising from the frame A is the oblique standard (J, carrying a bearing Din which is journaled the axle E. Secured to this axle is the fly-wheelF, and rotating loosely thereon is the sleeve G having integraltherewith the grooved wheel or driving pulley H, and ratchet wheel K.The teeth 0 of the ratchet wheel have triangular driving faces P, beingridged on their lifting faces Q. The pawl R is carried on a wrist S onthe fly wheel and has a forked bearing end T to correspond with thebevel of the lifting faces Q. The pawl is kept pressed against theratchet wheel by a spring U secured to the fly wheel. Power is suppliedfrom a treadle V by a cord W which passes round the grooved wheel, andis attached to the end of a C-spring X, the other end of which spring iscoiled round a wrist at the end of the arm Y of the frame. Power iscommunicated from the fly wheel to the saw by a roller Z carried by thefly wheel which works in a slot L in the saw frame.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. The combination of a fiy-wheel, with a driving pulley and a ratchetwheel secured to each other on the axle of the fly wheel, aspring-pressed pawl carried by the fly wheel said pawl having a forkedend and adapted to engage the ratchet wheel, a cord or rope round thepulley, one end whereof is secured to a reciprocating lever or treadle,and the other is secured to the end of a C-spring, substantially asdescribed.

2. The combination of a frame, said frame carrying a journal bearing ashaft in said bearing a fly wheel, said fly wheel carrying a rolleradapted to engage the device driven, a driving pulley and a ratchetwheel secured to each other on the axle of the fly wheel, a springpressed pawl carried by the fly wheel said pawl having a forked end andadapted to engage the teeth of the ratchet wheel, a C- spring, a cord orrope round the pulley, one end whereof is secured to a reciprocatinglever or treadle, and the other secured to the end of the C-spring, theother end of said spring being coiled round a wrist on an arm of theframe, substantially as and for the purpose set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN HUNT.

Witnesses:

R. J BURDGE, O. E. TAsKER.

